Jerry English <PICLIST@MITVMA.MIT.EDU> wrote:

> If you do run on 3 volts how do you emulate during debug? I
> understand that if the total system could be ran at 5 volts then it
> wouldn't require a translation, one would turn up the voltage,
> emulate till "all" bugs are gone, then set the voltage back down to
> 3 and hope the additional prop delays don't cause any problems.

    Jerry:

    Yeah, that's what I do.  It's not perfect, as you say, but it
    works for most applications.

> I can't do that because of the analog circuits in the system.

    Damn.

> Does anybody know of an emulator that runs at 3/5 volts?

    All the PIC emulators of which I'm aware use Microchip's bondout
    emulator chips, which don't work real well below 5 volts.

> Is there a market for an emulator signal level translator?

    I can't speak for the whole marketplace, but if it were priced
    right and let me easily configure which pins were translated
    (and in which directions), I'd buy one.

> Am I the first in the history of mankind to face this problem?

    No, but you're the first on the PICLIST (as far as I know) to
    propose the level-shifter box as a solution.

    -Andy

=== Andrew Warren - fastfwd@ix.netcom.com                 ===
=== Fast Forward Engineering - Vista, California          ===
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